Glass-finishing apparatus.



No. 644,536. Patented Feb. 27, 1900. A. a. NEVILLE.

GLASS FINISHING APPARATUS.

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No. 644,536. Patented Feb. 27, I900. A. G. NEVILLE.

GLASS FINISHING APPARATUS.

(Application filed Sept. 23, 1899.; (No Model.)

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NrrED STATES ATENT Prion.

ASA G. NEVILLE, OF WELLSBURG, WEST VIRGINIA.

GLASS-FINISHING APPARATUS.

SPECIFICATION formingpart of Letters Patent No. 644,536, dated February 27, 1900. Application filed September 23, 1899 Serial No. 731,438. (No model.)

To all whom it may concern:

Be it known that I, ASA G. NEVILLE, a citizen of the United States, residing at Wellsburg, in the county of Brooke and State of West Virginia, have invented certain new and useful Improvements in Glass-Finishing Apparatus; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machinery for finishing or forming glassware, such as shades for lamps and globes of various kinds. The article after being blown and opened is spread and then flared and finished. The spreading and the flaring are accomplished by closely-allied mechanisms in successive steps, thereby obviating reheating and enabling the work to be quickly effected by a boy instead of ahigh-priced skilled mechanic. and with less expense. Thus the capacity or output of each workman is increased in a given time and the cost of labor is lessened about one-half.

The invention consists of an apparatus of novel construction for spreading and finishing the article after it has been blown and opened, said apparatus having its parts cm-' pactly arranged and disposed for convenient and. positive actuation.

To those acquainted with the art advantages other than those herein enumerated will suggest themselves as the details and nature of the invention are comprehended, and to this end and, further, to a full disclosure of the minutia of the apparatus reference is to be had to the following description and drawings, in which corresponding and like parts are referred to and designated by the same reference characters.

For a full description of the' invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for efiectiug the result reference is to be had to the following description and the drawings hereto attached.

While the essential and characteristic features of the invention are necessarily susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which-' shaft 6.

Figure 1 is a perspective View of a machine constructed in accordance with and embody ing the vital principles of the invention. Fig. 2 is a detail view in elevation of a buifer and its mountings. Fig. 3 is a detail view in per spective of the parts illustrated in Fig. 2. Fig. 4 is a detail view in elevation, parts be"- ing broken away. Fig. 5 is a top view of a buffer and its mountings, the dotted lines showing an adjusted position of the buffer.

The apparatus for spreading and finishing the article of glassware after it has been blown and opened in any convenient and desired way comprises a stand 0 and forming and finishing mechanisms. The stand 0 consists of a base 23, an upper plate 24:, and connecting posts or uprights 25. A shaft 26.is located centrally of the base 23 and plate 24. and is supported thereby vertically and is provided at its lower end with a miter-gear 27, intermeshing with a corresponding mitergear 28, applied to the end of the countershaft 6. By this means rotary movement is imparted to the shaft 26 from the counter- Aformer 29 is secured to the upper end of the shaft 26 and is of paraboliform,

the outer sides being fluted or ribbed orany other shape, the ribs extending from the center of the block outward and downward.

A tubular shaft 30 is concentric with the shaft 26, and its lower portion passes through the plate 24 and is provided with a miter-gear 31, which is in meshing relation with the miter-gear 28. It will thus be seen that the concentric shafts 26 and 30 are driven in reverse directions from the counter-shaft 6 by means of the intermeshed miter-gears 27, 28, and 31.

A cross-head 32 is secured to the upper end of the tubular shaft 30 at a point immediately below the former 29, and its ends project beyond the sides of the said former and are bifurcated to receive levers or arms 33, which are fulcrurned thereto, the lower ends of said levers or arms being outwardly curved,whereas their upper ends are curved inward to conform as nearly as practicableto 'the outline of the former 29. A runner 34 is slidably applied to the shaft 30, and links 35 connect said runner with the lower ends of the arms or levers 33. This runner 34 has an annular groove in which is fitted the inner bifurcated or forked end of a foot lever or treadle 36, which is fulcrumed to a bracket 37, secured to the plate 24. The upper portion of the arms or levers 33 is preferably of circular outline in transverse section to admit of the angular adjustment of the buffers in the manner presently to be described. The combined weight of the runner 3t, links 35, and inner end of the foot-lever 36 is sufiieient to counterbalance the upper ends of the levers 33 and the buffers applied thereto, so as normally to hold said buffers away from the former 29, as indicated by the dotted lines in Fig. at, thereby obviating the necessity for the provision of a spring. However, the latter may be resorted to should the same become necessary by rea son of any peculiarity in the construction of the apparatus. The buffers E are sectional and comprise corresponding parts 38 and 39, which are disposed with their contiguous ends overlapping, so as to prevent the formation of an apparent seam or joint in the article when subjected to the final finishing or spreading. The buffers, as is obvious, wear unequally by reason of the difference in the surface traversed thereby, the lower sections 39 being worn more quickly than the upper sections; hence the advantage of having the buffer composed of parts so that repairs may be made at a minimum cost. The butters consist of oak or hickory wood attached to the springs, or preferably of metallic plates bent longitudinally into the required shape conformable to the outline of'the former 29. While any metal may be advantageously employed in the provision of the buffers, copper is found to give the best results and for this reason is preferable. The buffers have a yielding connection with their supporting arms or levers 33, the connections being approximately of C form, as shown at 4-0, and consisting ofspring-stripsbentapproximately into the shape illustrated. One end of the spring connection is rigidly attached to the respective buffer, and its opposite end is adj ustably connected with the arm or lever 33 preferably by means of having the end portion folded upon itself, forming an eye 41, through which the arm or support passes, a bolt 42 connecting the terminal. portion of the folded part with the body of the spring and serving to contract the eye and clamp the arm therein. lVhen it is required to adjust the buffer, the clamp-bolt or fastening 42 is loosened, thereby permitting the eye 41 to release its grip on arm 33, when the connection t0 can be turned slightly to vary the relative position of the buffer, as indicated by dotted lines in Fig. 7. When the buffer is properly adjusted, a retightening of the clamp-bolt or fastening 42 causes the eye t1 to contract slightly and grip the support to hold the buffer in an adjusted position.

From the foregoing description it will be readily understood that the corresponding parts of the buffers have positive connection at one end with the supporting arms or levers by means of the spring connection 40, whereas the opposite ends of said parts are free to move toward and from the former. This construction is of advantage, since it admits of the free ends of the buffer-sections gradually exerting a pressure to conform the article to the former 2.) when the apparatus is in operation.

The apparatus is especially designed for finishing articles having a flaring form when completed and is particularlydevised for finishing shades for lamps and lights of various kinds. The article when blown and detached from the blowpipe is caught bya post or snap in the well-known manner, and the end detached from the blowpipeis opened and spread into the required form in any way found most advantageous. After the article has been shaped and while it is still hot and plastic it is applied to the former 20 and is lowered thereon, which imparts the final shape thereto, the buffers gradually pressing the sides of the article to the outer sides of the former and at the same time polishing and giving a high finish to the article, which by this time is sufficiently cool to retain the shape imparted thereto and admit of its handling without collapsing or bending. The buffers prevent any bulging in the sides of the article when settling upon the former 29.

Having thus described the invention, what is claimed as new is- 1. In apparatus for finishing glassware, a former, supporting-arms, and buffers cooperating with the former and yieldingly and adjustably connected with the said supporting-arms, as and for the purpose described.

2. In glass-finishing apparatus, a former and supporting-arms in combination with sectional buffers having the contiguous ends of their parts overlapping and alining transversely, and yielding connections between the supporting-arms and the respective sections, as and for the purpose set forth.

In glass-finishing apparatus, a former and supporting-arms in combination with buffers, and yielding connections of approximately C form between the supporting-arms and buffers, substantially as described.

4. In glass-finishing apparatus, a former and supporting-arms in combination with sectional buffers having their contiguous ends overlapping, and a single spring connection between each section of the buffer and its supporting-arm and disposed so as to leave corresponding ends of cooperating sections free, as and for the purpose set forth.

In testimony whereof I ailix my signature in presence of two Witnesses.

ASA G. NEVILLE.

Witnesses:

GRIFFITH BEHRINGER, G. K. CHAPMAN.

IIO 

